Pathet Lao, left-oriented nationalist group in Laos that took control of the country in 1975. Founded in 1950, the Pathet Lao (Lao Country) movement joined with the Viet Minh, the Communist-oriented Vietnamese nationalist organization, in armed resistance to French rule in Indochina. In 1956 a legal political wing, the Lao Patriotic Front (Neo Lao Hak Xat), was founded and participated in several coalition governments. In the 1960s and early ’70s the Pathet Lao fought a civil war against the U.S.-backed Vientiane regime, winning effective control in the north and east. In the spring of 1975 Pathet Lao forces consolidated their power throughout the country. The Vientiane government fell in May 1975, and Pathet Lao leaders formed a new government.

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In neighbouring Laos the Communist Pathet Lao took control of the two northernmost provinces of the country in defiance of the neutral government under Prince Souvanna Phouma agreed upon after Geneva. Those provinces sheltered the Ho Chi Minh Trail supply route bypassing the demilitarized zone between the two Vietnams. When a new, assertive Laotian government sent troops to enforce its...

...under this new arrangement, their decision was opposed by a more radical group led by Kaysone Phomvihan and Prince Souphanouvong. Under Souphanouvong’s leadership a new political movement, the Pathet Lao (“Land of the Lao”), was proclaimed (1950); it joined forces with the Viet Minh of Vietnam in opposing the French. The Pathet Lao remained unreconciled when the French took...

...1946 and 1954. Control of the government changed hands between rightists and neutralists several times until 1962, when a coalition government between them and the Laotian communists called the Pathet Lao (“Lao Country”) was formed under the leadership of Prince Souvanna Phouma. The coalition continued to govern while communists and noncommunists vied for control of the outlying...